Eta allows you to control the whitespace before or after tags.
Eta borrows its whitespace control syntax from EJS
Opening delimiters can be followed with
_, and closing delimiters can be prefixed with
_ at the beginning of a tag will trim all whitespace before it, and
_ at the end of a tag will trim all whitespace after it.
- at the beginning of a tag will trim 1 newline before it, and
- at the end of a tag will trim 1 newline after it.
By default, Eta removes the first newline character after each tag. This can be configured